- Exam
- JEE Main
- Year
- 2023
- Date
- 25 January
- Shift
- Evening Shift
- Subject
- Chemistry
- Chapter
- Chemical Bonding and Molecular Structure
JEE Main 2023 · 25 January · Evening Shift · Chemistry · Chemical Bonding and Molecular Structure
Statement I:- Dipole moment is a vector quantity and by convention...
Statement I:- Dipole moment is a vector quantity and by convention it is depicted by a small arrow with tail on the negative centre and head pointing towards the positive centre.
Statement II:- The crossed arrow of the dipole moment symbolizes the direction of the shift of charges in the molecules.
In the light of the above statements, choose the most appropriate answer from the options given below:-
Options
- ABoth Statement I and Statement II are correct.
- BStatement I is incorrect but Statement II is correct.
- CBoth Statement I and Statement II are incorrect.
- DStatement I is correct but Statement II is incorrect.
Correct answer
B. Statement I is incorrect but Statement II is correct.
Step-by-step solution
Dipole moment is a vector quantity and by convention it is depicted by a small arrow with tail on the negative centre and head pointing towards the positive centre. But in chemistry presence of dipole moment is represented by the crossed arrow put on Lewis structure of the molecule. The cross is on positive end and arrow head is on negative end. So, statement I is incorrect.
The crossed arrow of the dipole moment symbolises the direction of the shift of electron density in the molecules. So, statement II is correct.
Hence the correct option is B